Engine-platform.



W. E. JONES.

ENGINE PLATFORM. APPLICATION FILED JULY 5.1917.

Patented Jan. 22, 1918iA 3 SHEETS-SHEET l.

W. E. JONES. ENGINE PLATFORM. APPLICATION FILED JULY 5. 1911.

3 SHEETS-SHEET?.

atented Jan. 22, 1918.

Wi E. JONES.

ENGINE. PLATFORM. APPLICATION FILED suLY 5,1917.

Patented Jan. 22, 1918'.

3 SHEETS-SHEET 3.

Warren n. Jonas,

or mina, onio.

ENGINE-PLATFORM.

Specification of Letters Patent.

Patenten aan, es, isis,

Application filed July 5, 1917. Serial No. 178,618.

To all whom it may concern:

Be it known that I, WALTER F. JoNEs, of Lima, in the county of Allenand State of Ohio, have invented certain new 'and useful Improvements in Engine-Platforms, of' which the following is a specification.

This invention relates to integral engine platforms, and particularly to platforms or frames for truck carried locomotives, such as 'geared locomotives of the Shay or similar types, It has for one of its primary objects the provision of anv improved platform of minimum' weight, having the best possible disposition of the metal to meet thel various strains to which'the platform is subjected, and in which all of the members or parts may be so placed as to best meet the strains imposed.

Another object of the invention resides in the provision of a platform of the c haracter specied in which the cost of maintenance is reduced to a minimum, and in which the great multiplicity of parts, such las structural steel shapes and' truss rods, plates, brackets, angles, knees, bolts and rivets, is eliminated in great part.

I obtain the foregoing, together with such other objects as may hereinafter appear, by means of a construction, the preferred embodiments of which I have illustrated in the accompanying drawings, wherein- Figure i is a diagrammatic illustration of a geared locomotive of the Shay type, having my improvements'applied thereto in articulated form; Fig. 2 is a plan view of that portion of the platform for the tender; Fig. 3 is a section on the line III-III of Fig. 2; Fig. 4 is a plan view of the forward portion of the engine platform shown in Fig. l; Fig. 5 isa side elevation of the platform shown in Fig. 4; Fig. 6 is aseotion talren on the line VI-VI of Fig. Il;` Fig. '7 is a section taken on the line VII- VII of Fig. 4; Fig. 8 is a plan view of a platform embodying my improvements adapted for use on geared locomotives of types other than the Shay type; Fig. 9 is a section taken on the line IX-IX of Fig. 3; and Fig. 10 is a section taken on the line l X--X of Fig. 8.

In truck driven locomotives, whether of the steam driven, motor driven or electrically driven type, it has been customary to support the superstructure of the locomotive on what is termed a platform, which is mounted on the center pins carried by the trucks. Such constructions may be divided into two general classes, namely, one in which the tractive power from the trucks is carried through the center pins to the locomotive platform on which the draft gear is mounted, thus passing the pull from the trucks through the platform, and the other, a frame construction in which the trucks are articulated together and the tractive power is passed through the truck members to the draft gear which, in this case, is mounted on the end lnrrembers of the trucks. Such platforms have been built up from structural steel shapes and truss rods, or from structural steel and plate made into the form of a truss, which construction necessitates the use of a large number of brackets, angles, knees, bolts and rivets to connect the .various portions of the frame together.

Among the difficulties encountered with such constructions, the following may be briefly-noted, namely, the construction neces sarily involves, by 'reason of the multiplicity of parts, an appreciable excess weight and a heavy cost of maintenance; At the same time it is impossible to arrange all of the members or parts in such manner as to best withstand the strains imposed on the platform, nor to so dispose the metal itself as to best withstand the strains to which the platform is subjected. Furthermore, it will be apparent that with the builtup construction, the pieces of which are secured together, the possibilities for the development of play between the parts in the course of use, particularly where the tractive power is transmitted to the platform,

vare greatly increased, which play materially a'ects the life of the working parts and necessitates more frequent repair. Theforcgoing difficulties will beunderstood by those familiar with this art, and particularly by those familiar with geared locomotives and the service conditions which they must meet. I overcome the foregoing difficulties and obtain certain advantages, to be Vhereinafter more fully noted,by providing an enginel platform cast integral.

In Figs. i, and l to 7 inclusive, I have illustrated my improvement as applied to truck driven geared locomotives of the Shay tvpe. In Fig. 1 I have diagrammatically indicated three driving trucks, D, E, and F,

for the locomotive, it being understood that such driving truclrs are of any standard construction provided with center pins 'ill for supporting the engine platform, and through which the pull of the trucks is transmitted to the platform.l The driving gear itself is not shown, as this may be of any preferred standard construction. The platform for the engine, which I have indicated as a whole at A, is composed, in this instance, of two members or units articulated together. The'forward unit comprises two longitudinal members or side sills 7 and 8 of an I-shape; two body `bolster members .9 and 10, of enlarged I-shape, z', e., having ner as to provide a housing 15 for the draft gear; while at the other end, a bum er frame 16 is cast integral with the engine platform. The webs of the various members constituting the unit merge into one y another, and the forward body bolster-is braced by the stiffening webs of the members 12 and 13, and the wall of the center plate 17 adapted to receive the center pin of the forward truck, and also by the crossweb 18. The rear body bolster is similarly braced and also by .the web 19 connecting the bolster with the walls of the bumper frame 16. The ,longitudinal members 7 and 8 are provided with the plurality of pads 2O to receive brackets to the boiler and for the support. of other fittings. The boiler` support bearing 21 may also be castintegral with the forward body bolster, and the housing B for the engine shaft is preferably cast integrally with the longitudinal mem-` ber 7, such housing member being shown in cross-section in Fig. 7. The construction of the body bolsterin cross-section. is shown in Fig. 6. The rear unit of the platform, C, is articulated with the forward unit by means of the .usual link mechanism D in such manner that the two units are kept in the same vertical alinement,thus preventing any tendency for the rear unit to tilt.

The rear unit is of the same general construction as the forward unit, that is it comprises longitudinal members 7 and 8; bumpers 14 and 16; a single bodybolster 9; members 12 and 13 extending between the bumper 14 and the body bolster 9; and providing a draft gear housing 15; all ofsaid members being substantially I-shaped. The bumper 16 and the body bolster 9 are connected by longitudinal stii'ening members 12 and 13', also of substantial I-Shape. Except in so far as above noted, the remainder of the structure is the same as that of the forward unit.

It will be seen from the foregoing, that I have provided a simple platform of very light construction, in which not only the metal, but also the various parts of the frame can be so disposed and located as to best withstand the strains imposed on the.

the life of the locomotive because ofthe elimination of relative play, and the consequent maintenance of alinement in the operatmg parts carried vby the platform or frame.

' In the construction shown in Figs. 8, 9, and 10, a similar form of integral but nonarticulated engine platform is employed, but in this case, .the center pins, or rather the center pin plates, are located in the platform center line, thus adapting the platform for any type of geared locomotive, while in the construction shown in Figs. 1, and 4 to 7, the center plates are located to one sideof the platform center line, a characteristic peculiar to the Shay type of geared locomotives.

While I have shown and described my invention as applied to geared locomotives, it will be apparent that it is also applicable to other forms of locomotives Ain which the locomotive is carried on trucks. It is also to be understood that where, as in the coustruction .of Fig. 1', for example, more than two trucks are provided for the engine, the engine platform may be articulated in order to obtain the proper division of weight between the'trucks. The improvement is simple in character, but effectively overcomes the peculiar diiiculties encountered in truck carried locomotives` as 'compared to locomotives having pedestal engine frames.

I claim:

1. A cast steel platform lfor geared locomotives comprising side sills, body holsters, end members, and an engine shaft housing cast integral with a side sill.

2. In a cast steel platform for geared lo.- comotives, the combination with the .component members or body of the platform, of an engine shaft housing cast integral with a side sill' and projecting Jdownwardly therefrom.

3. In a cast steel platform for geared locomotives, the combination with the component members or body of the platform, of an engine shaft housing cast integral with a side sill and projecting downwardly there-- from and provided with stifl'ening means extending from the housing to the side of thelside sill.

4. In a cast steel platform for geared locomotives, the combination with the component members or body of the platform, of ponent members or body of the platform, of

an engine shaft housing cast integral with super-structure supporting elements on the 10l the side sill and extending downwardly and upper face of and integral with the platlaterally therefrom, and substantially verform and an engine shaft housing integral 5 tical stiffening Webs connecting the engine with a side sill of the platform.

shaft housing and the sill. In testimony whereof I have hereunto I5. In a cast steel platform for geared losigned my name.

comotives, the combination with the eom- WALTER E. JONES. 

